string(321) "get document error：https://zhidao.baidu.com/search?lm=0&rn=10&pn=0&fr=search&dyTabStr=null&word=%E5%BC%80%E4%B8%80%E4%B8%AA%E5%8F%B0%E7%90%83%E5%8E%85%E5%A4%A7%E7%BA%A6%E9%9C%80%E8%A6%81%E5%A4%9A%E5%B0%91%E9%92%B1%E4%BA%BA%E6%B0%91%E5%B8%81%E5%91%80 => Failed to connect to 101.89.159.206 port 38187: Connection refused"
开一个台球厅大约需要多少钱人民币呀
